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Twitter on a ZX Spectrum

And other wonders from the Vintage Computing Fair

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Top three mobile application threats

Forgotten but not gone

The Fair brought up some entire categories that I'd forgotten. This is the Sinclair ZX PBS+ Executive IV from 1985:

Yes, it's pretty neat with the included printer. But the USP was that it came in a suitcase:

It also has something you'd never expect to see on a Sinclair:

...which is a decent keyboard.

The predecessor was this – we had one of these in our attic. Note the screen size. There's far too much emphasis on graphics these days, this was pretty "immersive", in its own way:

Another category I'd forgotten about was the early portable. Sinclair's Z88, launched in 1987, ran off 4 AAs. (More here).

Amstrad was offering something similar as late as 1993:

(More on that here).

Here an attendee shows a more recent vintage:

Over in the Amiga users' tent was a wide range of business computing. I'm impressed if you can tell what machine this is, without cheating:

Seven Steps to Software Security

Next page: Any old iron

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